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BACB30NM4K4 — BOLT,SHOULDER

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

BACB30NM4K4: BOLT,SHOULDER.

The BOLT,SHOULDER is a the manufacturer industrial component. Key specifications include material: TITANIUM ALLOY OVERALL, head_style: HEXAGON, head_height: 0.105 INCHES NOMINAL IN, thread_class: 3A A, thread_length: 0.380 INCHES NOMINAL IN, shoulder_shape: ROUND OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5306-01-499-4458, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
BACB30NM4K4
NSN: 5306-01-499-4458
NIINs: 014994458, 016696585
FSC: 5306 — Bolts
CAGE: 81205 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
materialTITANIUM ALLOY OVERALL
head_styleHEXAGON
head_height0.105 INCHES NOMINAL IN
thread_class3A A
thread_length0.380 INCHES NOMINAL IN
shoulder_shapeROUND OVERALL
fastener_length0.675 INCHES NOMINAL IN
shoulder_length0.422 INCHES NOMINAL OVERALL IN
thread_directionRIGHT-HAND
shoulder_diameter0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM OVERALL IN
surface_treatmentALUMINUM OVERALL
width_between_flats0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
NSN5306-01-499-4458
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: BACB30NM4K4 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD HEIGHT: 0.105 INCHES NOMINAL IN
•
FASTENER LENGTH: 0.675 INCHES NOMINAL IN
•
SHOULDER LENGTH: 0.422 INCHES NOMINAL OVERALL IN
•
SHOULDER DIAMETER: 0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM OVERALL IN
•
THREAD LENGTH: 0.380 INCHES NOMINAL IN
•
SHOULDER SHAPE: ROUND OVERALL
•
NOMINAL THREAD DIAMETER: 0.250 INCHES IN
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.105 INCHES NOMINAL IN
FASTENER LENGTH0.675 INCHES NOMINAL IN
SHOULDER LENGTH0.422 INCHES NOMINAL OVERALL IN
SHOULDER DIAMETER0.010 INCHES MINIMUM AND 0.020 INCHES MAXIMUM OVERALL IN
THREAD LENGTH0.380 INCHES NOMINAL IN
SHOULDER SHAPEROUND OVERALL
NOMINAL THREAD DIAMETER0.250 INCHES IN
HEAD STYLEHEXAGON
THREAD DIRECTIONRIGHT-HAND
WIDTH BETWEEN FLATS0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is BACB30NM4K4?
BACB30NM4K4 is a BOLT,SHOULDER.
What is the NSN for BACB30NM4K4?
BACB30NM4K4 is cataloged in the U.S. Government catalog under NSN 5306-01-499-4458. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.